Imagick::setImageIterations
I found this method is needed when creating a font / image mask, and needs to be set to false otherwise the mask won't take effect. Here is an example:
<?php
// Create objects
$image = new Imagick('myImage.png');
$watermark = new Imagick();
$mask = new Imagick();
$draw = new ImagickDraw();
// Define dimensions
$width = $image->getImageWidth();
$height = $image->getImageHeight();
// Create some palettes
$watermark->newImage($width, $height, new ImagickPixel('grey30'));
$mask->newImage($width, $height, new ImagickPixel('black'));
// Watermark text
$text = 'Copyright';
// Set font properties
$draw->setFont('Bookman-Demi');
$draw->setFontSize(20);
$draw->setFillColor('grey70');
// Position text
$draw->setGravity(Imagick::GRAVITY_SOUTHEAST);
// Draw text on the watermark palette
$watermark->annotateImage($draw, 10, 12, 0, $text);
// Draw text on the mask palette
$draw->setFillColor('white');
$mask->annotateImage($draw, 11, 13, 0, $text);
$mask->annotateImage($draw, 10, 12, 0, $text);
$draw->setFillColor('black');
$mask->annotateImage($draw, 9, 11, 0, $text);
// This is apparently needed for the mask to work
$mask->setImageMatte(false);
// Apply mask to watermark
$watermark->compositeImage($mask, Imagick::COMPOSITE_COPYOPACITY, 0, 0);
// Overlay watermark on image
$image->compositeImage($watermark, Imagick::COMPOSITE_DISSOLVE, 0, 0);
// Set output image format
$image->setImageFormat('png');
// Output the new image
header('Content-type: image/png');
echo $image;
?>
Imagick::setImageMatte
(PECL imagick 2.0.0)
Imagick::setImageMatte — Sets the image matte channel
Descrição
bool Imagick::setImageMatte
( bool $matte
)
Sets the image matte channel. Este método esta disponível apenas se Imagick foi compilado com ImageMagick versão 6.2.9 ou mais nova.
Parâmetros
- matte
-
True activates the matte channel and false disables it.
Valor Retornado
Retorna TRUE em sucesso.
User Contributed Notes
Imagick::setImageMatte
Imagick::setImageMatte
martin at psinas dot com
05-Oct-2011 03:33
05-Oct-2011 03:33